Cita APA (7th ed.)
Crombie, J. M. (1894). A Monograph of Lichens found in Britain.
Cita Chicago (17th ed.)
Crombie, James M. A Monograph of Lichens Found in Britain. London, 1894.
Cita MLA (9th ed.)
Crombie, James M. A Monograph of Lichens Found in Britain. 1894.
Atenció: Aquestes cites poden no estar 100% correctes.